Purpose: The PEDI-CAT (ASD) is used to assess functioning of children and youth on the autism spectrum; however, current psychometric evidence is limited. This study aimed to explore the reliability, validity and acceptability of the PEDI-CAT (ASD) using a large Australian sample. Methods: Caregivers of 134 children and youth on the spectrum…

Adolescence, a crucial period preceded by childhood and followed by adulthood, involves significant growth and developmental changes leading to various psychological challenges and aggressive tendencies. Several scales have been developed to measure aggression, but 12-item short form aggression questionnaire has been widely used for assessing…

Response styles pose great threats to psychological measurements. This research compares IRTree models and anchoring vignettes in addressing response styles and estimating the target traits. It also explores the potential of combining them at the item level and total-score level (ratios of extreme and middle responses to vignettes). Four models…

There is growing interest in climate change education, however there are very limited tools in elementary and secondary level to measure students' understanding. Departing from this need, this study aimed to adapt the Climate Change Stages of Change Questionnaire into Turkish and examine its validity and reliability. The adaptation process stated…

The aim of this study is to develop a valid and reliable measurement tool to measuring teachers' leader-member exchange behaviors. The study group of the research consists of 396 teachers working in secondary schools in the central districts of Eskisehir, Odunpazari and Tepebasi, in the 2018-2019 academic year. The construct validity of the scale…

The aim of this study is to find evidence of factorial validity, measure equivalence by gender, and internal consistency of the Mental Health Continuum-Short Form (MHC-SF) in a sample of Ecuadorian teenagers. The study uses a psychometric design to explore the validity and reliability of the measure. Participants of the study were 1154 teenagers…

Background/purpose: Phubbing has emerged as a psychological and behavioral concern that threatens the quality of interpersonal relationships and psychological well-being, particularly among adolescents and adults, so the current research aimed to investigate the psychometric properties of the Arabic version of the Generic Scale of Phubbing…

The primary objectives of this study were to translate and assess the psychometric properties of the Principal Instructional Leadership Scale (PILS) within an Iranian population. The translation and cross-cultural adaptation process involved five stages: forward translation, translation synthesis, backward translation, expert committee review, and…

The objectives of the present study were, on the one hand, to analyse the internal consistency of four questionnaires referring to the perception and knowledge of inclusion and cooperative learning (CL), and on the other, to discover the perception and knowledge of inclusion and CL in Physical Education (PE) of university students studying courses…

The aim of this study was to cross-culturally adapt and validate of the Brazilian Portuguese version of the Quality of Life in Autism Questionnaire (QoLA) among parents of children ASD. The translated version was administered to 91 parents (Male: 4, Female: 85, other: 2) of individuals diagnosed with ASD. Among these, 22 completed the…

This study aims to develop a valid and reliable achievement test in accordance with the content framework of the 9th-grade Biology Course Curriculum published within the scope of the Turkish Century Maarif Model on the subject of "Organic Matter". The screening method was used for this purpose. The sample of the study consists of 258…

The Student Career Construction Inventory measures students' adapting behaviors. The present study validates this inventory in a sample of 314 Portuguese college students. Measurement confirmatory factorial analysis indicates better fit for the 18-items measurement model, comparing to the 25-items model. Reliability and criterion-related analyses…

The goal of this study is to create the Zero Waste Attitude Scale, which will be used to determine the zero-waste attitude of social studies teacher candidates and to conduct validity and reliability studies. The data for the study were collected with a 5-point Likert-type form from pre-service teachers studying in the social studies teaching…

Background: Communication of people with Parkinson's disease (PwPD) is negatively affected. For PwPD with communication difficulties, it is important to use self-assessment tools as a primary assessment approach to evaluate their perspectives on communication. It is also important to evaluate PwPDs with self-assessment scales in order to determine…

Spelling and handwriting are related skills which are critical for writing but are typically assessed separately. Doing so makes it more difficult to understand their respective development. We describe the creation and evaluation of a tool for their concurrent assessment: the Spelling and Handwriting Legibility Test (SaHLT). We examined whether…